istockphoto
Obesity is a big, fat problem for teens - and a growing one. Obesity rates among U.S. teens have more than tripled in the past 30 years, rising from 5.0 percent to 18.1 percent.
What's going wrong? Bad eating habits are no doubt to blame, but so is a lack of exercise - and some states have more couch potato kids than others. Keep clicking to see the rankings...
The rankings - based on recent surveys supervised by the Centers for Disease Control and Prevention - aren't perfect. But they're certainly provocative, especially to parents eager to get their kids up off the couch.
25. New Hampshire
iStockphoto
In New Hampshire, only 24.0 percent of children in grades nine through 12 said they were physically active.
24. Indiana
istockphoto
In Indiana, 23.5 percent of children in grades nine through 12 said they were physically active.
23. Idaho
iStockphoto
In Idaho, 23.2 percent of children in grades nine through 12 said they were physically active.
22. Florida
istockphoto
In Florida, 23.0 percent of children in grades nine through 12 said they were physically active.
21. Delaware
istockphoto
In Delaware, 22.8 percent of children in grades nine through 12 said they were physically active.
19. (tie) South Dakota
iStockphoto
In South Dakota, 22.6 percent of children in grades nine through 12 said they were physically active.
19. (tie) Nevada
istockphoto
In Nevada, 22.6 percent of children in grades nine through 12 said they were physically active.
17. (tie) Maine
istockphoto
In Maine, 22.1 percent of children in grades nine through 12 said they were physically active.
17. (tie) New Mexico
istockphoto
In New Mexico, 22.1 percent of children in grades nine through 12 said they were physically active.
16. Michigan
istockphoto
In Michigan, 21.9 percent of children in grades nine through 12 said they were physically active.
15. North Dakota
iStockphoto
In North Dakota, 21.8 percent of children in grades nine through 12 said they were physically active.
14. Illinois
istockphoto
In Illinois, 21.7 percent of children in grades nine through 12 said they were physically active.
12. (tie) Massachusetts
iStockphoto
In Massachusetts, 21.5 percent of children in grades nine through 12 said they were physically active.
12. (tie) Mississippi
istockphoto
In Mississippi, 21.5 percent of children in grades nine through 12 said they were physically active.
11. Montana
iStockphoto
In Montana, 21.2 percent of children in grades nine through 12 said they were physically active.
10. New York
istockphoto
In New York, 20.6 percent of children in grades nine through 12 said they were physically active.
9. South Carolina
istockphoto
In South Carolina, 20.1 percent of children in grades nine through 12 said they were physically active.
8. Utah
iStockphoto
In Utah, 19.9 percent of children in grades nine through 12 said they were physically active.
7. Wisconsin
istockphoto
In Wisconsin, 18.8 percent of children in grades nine through 12 said they were physically active.
6. Alaska
iStockphoto
In Alaska, 18.7 percent of children in grades nine through 12 said they were physically active.
5. District of Columbia
istockphoto
In the District of Columbia, 18.5 percent of children in grades nine through 12 said they were physically active.
4. Hawaii
istockphoto
In Hawaii, 18.1 percent of children in grades nine through 12 said they were physically active.
3. Kentucky
istockphoto
In Kentucky, 17.6 percent of children in grades nine through 12 said they were physically active.
2. Maryland
istockphoto
In Maryland, 16.3 percent of children in grades nine through 12 said they were physically active.
1. Arizona
istockphoto
In Arizona, 16.2 percent of children in grades nine through 12 said they were physically active.
